OCP认证考试的052题库更新，新考题及答案整理-第44题

时间：2018-07-25 来源：

OCP认证考试题库出现了变动，以往的考试题很多不再使用，出现了很多新题，这里收集整理了一些052考试新题，希望对大家通过OCP有帮助。

44、In which two cases is a consistent database backup created?

A. when the RMAN BACKUP command is used while the database is OPEN READ ONLY

B. when the RMAN BACKUP AS COPY command is used while the database is OPEN RESTRICTED

C. when the RMAN BACKUP AS COPY command is used while the database is OPEN

D. when O/S commands are used to copy database files after a database instance is shut down normally

E. when the RMAN BACKUP command is used while the database is mounted

Correct Answer: AD

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